<template>
  <div class="article">
    <div class="search">
      <el-form :inline="true" size="small">
        <el-form-item>
          <el-input placeholder="请输入关键字" prefix-icon="el-icon-search" v-model="param.title"></el-input>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" @click="loadArticleData">搜索</el-button>
        </el-form-item>
      </el-form>
    </div>
    <!-- 按钮 -->
    <div class="btns">
      <el-button size="small" type="primary" @click="toAdd">新增</el-button>
    </div>
    <!-- /按钮 -->

    <!-- 表格 -->
    <el-table size="small" :data="articles.list">
      <el-table-column label="序号" type="index" :index="1"></el-table-column>
      <el-table-column label="新闻标题" prop="title" width="630"></el-table-column>
      <el-table-column label="新闻分类" prop="category.name" width="180"></el-table-column>
      <el-table-column label="发布时间" prop="publishTime" width="220">
        <template v-slot:default="scope">{{scope.row.publishTime | fmtDate}}</template>
      </el-table-column>
      <el-table-column label="阅读次数" prop="readTimes" width="180"></el-table-column>
      <el-table-column label="状态" prop="status" width="180"></el-table-column>
      <el-table-column label="点赞次数" prop="thumpUp" width="120"></el-table-column>
      <el-table-column label="操作" align="center" fixed="right">
        <template v-slot:default="scope">
          <el-button @click="toEdit(scope.row)" size="mini" type="text" icon="el-icon-edit" circle></el-button>
          <el-button @click="toDel(scope.row)" size="mini" type="text" icon="el-icon-delete" circle></el-button>
        </template>
      </el-table-column>
    </el-table>
    <!-- /表格 -->
    <div align="center">
      <el-pagination
        v-if="articles.total > param.pageSize"
        layout="total,prev, pager, next,jumper"
        @current-change="currentChangeHandler"
        :current-page="param.page"
        :page-size="param.pageSize"
        :total="articles.total"
      ></el-pagination>
    </div>

    <!-- 模态框 -->
    <el-dialog title="发布新闻资讯" :visible.sync="visible" width="80%">
      <el-form label-width="80px" size="small">
        <el-form-item label="标题">
          <el-input v-model="form.title"></el-input>
        </el-form-item>
        <el-form-item label="所属分类">
          <el-select v-model="form.categoryId">
            <el-option v-for="c in categorys" :key="c.id" :label="c.name" :value="c.id"></el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="资讯">
          <!-- 富文本编辑器 -->
          <tinymce v-model="form.content" :height="240" />
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="visible = false" size="small">取 消</el-button>
        <el-button type="primary" @click="submit" size="small">确 定</el-button>
      </span>
    </el-dialog>
    <!-- /模态框 -->
  </div>
</template>

<script>
// 导入ajax工具（本质ajax -> axios -> reqeust）
import { get, post } from "@/utils/request";
import Tinymce from "@/components/Tinymce";
export default {
  components: { Tinymce },
  data() {
    return {
      visible: false,
      param: {
        page: 1,
        pageSize: 9,
      },
      articles: {},
      form: {},
      categorys: [],
      title: "录入新闻资讯",
    };
  },
  created() {
    // 在vue实例创建完毕后加载分类信息
    this.loadArticleData();
    this.loadCategoryData();
  },
  methods: {
    // 提交表单
    submit() {
      let url = "/article/saveOrUpdate";
      // 修改form，不用直接操作form，先进行克隆（深拷贝）
      let data = Object.assign({}, this.form);
      // 提交
      post(url, data).then((response) => {
        this.$message({ type: "success", message: response.message });
        this.loadArticleData();
        this.visible = false;
      });
    },
    // 去添加
    toAdd() {
      this.title = "录入新闻资讯";
      this.form = {};
      this.visible = true;
    },
    // 打开模态框准备修改
    toEdit(row) {
      this.title = "修改新闻资讯";
      // 将row克隆后赋值给form，避免直接修改row影响页面变化
      this.form = Object.assign({}, row);
      this.visible = true;
    },
    toDel(row) {
      this.$confirm("此操作将永久删除该数据, 是否继续?", "提示", {
        confirmButtonText: "确定",
        cancelButtonText: "取消",
        type: "warning",
      }).then(() => {
        let url = "/article/deleteById";
        get(url, { id: row.id }).then((response) => {
          this.$message({ type: "success", message: response.message });
          this.loadArticleData();
        });
      });
    },
    // 加载新闻资讯
    loadArticleData() {
      let url = "/article/pageQuery";
      get(url, this.param).then((response) => {
        this.articles = response.data;
      });
    },
    // 加载资讯分类
    loadCategoryData() {
      let url = "/category/findAll";
      get(url).then((response) => {
        this.categorys = response.data;
      });
    },
    // 监听翻页
    currentChangeHandler(page) {
      this.param.page = page;
      this.loadArticleData();
    },
  },
};
</script>
<style scoped>
.search {
  float: left;
}
.btns {
  float: right;
}
</style>

